(a) a person gives notice of a holding under section 30H; and
(b) an event of a kind described in section 30M, 30P or 30Q occurs in relation to the holding before 1 December 2017;
the person must give the Commissioner notice, in the approved form, of the event before the later of:
(c) 1 December 2017; and
(d) the end of 30 days after the occurrence of the event.